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Finding the Third Proportional to 815,580 and 1,918,908

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Solution

The third proportional to 815,580 and 1,918,908 is: 4,514,833.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,580 : 1,918,908 = 1,918,908 : x
  2. Step 2: Convert to fraction form
    815,580/1,918,908 = 1,918,908/x
  3. Step 3: Cross multiply
    815,580x = 1,918,908 × 1,918,908
  4. Step 4: Simplify right side
    815,580x = 3,682,207,912,464
  5. Step 5: Solve for x
    x = 3,682,207,912,464/815,580
  6. Step 6: Final answer
    x = 4,514,833.51

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.